On Thu, 2 Mar 2000 11:08:20 +0200, I. Forbes wrote: >Hello All > >A professional spammer is using a forged "From:" header line >which quotes a non existant address at one of our domains. Every >spam he sends to a bad address gets bounced to us. We are >running qmail, which by default, accepts these bounces then >handles them as "double bounces". [...] >The problem is an irritation to me and obviously to all of the people >who are getting the spam. My plan is to convert the qmail to exim >(this is part of a larger project, which is why I have not done anything >yet) then let exim refuse the bounce messages with a 500 error >before they are accepted.
There should be a patch for qmail, which does this (IIRC).

